Evolution and Biodiversity Quiz 10 points

1. Invasive species often pose a threat to native species because: a. Invasive species are less resistant to pesticides b. Invasive species often have no natural competitors or predators c. Invasive species are at the top trophic level of most food chains. d. Invasive species are not susceptible to biomagnification e. Invasive species tend to have a lower fecundity than native species

2. Biological evolution by natural selection is when genes ____, individuals ____, and populations ____. a. evolve; mutate; are selected b. are selected; mutate; evolve c. mutate; evolve; are selected d. evolve; are selected; mutate e. mutate; are selected; evolve

3. In the United States, which agency is responsible for monitoring the import of threatened species as well as administering the Endangered Species Act? a. U.S. Fish and Wildlife Service b. Environmental Protection Agency c. U.S. Forest Service d. The National Park Service e. The Sierra Club

4. According to the Theory of Island Biogeography, which of the following factors increases island biodiversity? I. increased proximity to the mainland II. increased island size III. increased amount of edge habitat a. I only b. I and II c. III only d. I, II, and III e. II and III

5. If habitat is in need of management to connect separate populations, the best way to promote gene flow is to implement: a. catch and release programs b. captive breeding in zoos c. habitat corridors d. an increase in edge habitat e. introduction of exotic species

6. In a population of beetles a few individuals possess an allele which confers resistance to insecticide. Align the possible scenarios to match with the correct process 1. The farmer applies insecticide, and the allele becomes relatively more common as susceptible individuals die. 2. Two insects fly to a neighboring field, where they multiply. Both lack the allele, so it is absent from the new population. 3. A beetle learns to avoid eating the insecticide if the first dose is small and doesn't kill him. a. selection, genetic drift and acquired characteristic. b. acquired characteristic, genetic drift and selection. c. genetic drift, selection and acquired characteristic.

7. You are an ecologist studying alligators in the outback 7. You are an ecologist studying alligators in the outback. You find that the population of alligators is so depleted that organisms that depend on alligator holes for their survival are also hurting. You would most likely label the alligators a. threatened b. endangered c. locally extinct d. ecologically extinct e. invasive

8. CITES is a(n) a. treaty controlling the international trade in endangered species. b. set of regulations controlling the introduction of exotic species. c. pact that supports critical ecosystems that support wildlife. d. international organization dedicated to the preservation of endangered species. e. area that has been set aside as wildlife preserves in developing countries.

9. Natural selection apparently favors peacocks with big tails. Why? a. Males with big tails live longer b. They are healthier than other males c. They have more reproductive success d. They can escape predators more easily e. They have larger vocal cords

10. Which community is most diverse? Support your answer. Community A Community B